Pneumonia is an infection of the air sacs (alveoli) of the lungs. When fluid or pus enters the alveoli, this blocks the passage and prevents oxygen from entering the blood. Thus, it turns to a severe condition when the patients will be gasping for breath. All pivotal organs of the body may not function properly because they have an inadequate supply of oxygen that they need. Though modern medications are effective in treating pneumonia, the oil of wild oregano is quite beneficial against pneumonia.